1// Copyright 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CC_LAYERS_TEXTURE_LAYER_IMPL_H_
6#define CC_LAYERS_TEXTURE_LAYER_IMPL_H_
7
8#include <string>
9
10#include "base/callback.h"
11#include "cc/base/cc_export.h"
12#include "cc/layers/layer_impl.h"
13
14namespace cc {
15class ScopedResource;
16
17class CC_EXPORT TextureLayerImpl : public LayerImpl {
18 public:
19  static scoped_ptr<TextureLayerImpl> Create(LayerTreeImpl* tree_impl,
20                                             int id,
21                                             bool uses_mailbox) {
22    return make_scoped_ptr(new TextureLayerImpl(tree_impl, id, uses_mailbox));
23  }
24  virtual ~TextureLayerImpl();
25
26  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* layer_tree_impl)
27      OVERRIDE;
28  virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
29
30  virtual bool WillDraw(DrawMode draw_mode,
31                        ResourceProvider* resource_provider) OVERRIDE;
32  virtual void AppendQuads(QuadSink* quad_sink,
33                           AppendQuadsData* append_quads_data) OVERRIDE;
34  virtual void DidDraw(ResourceProvider* resource_provider) OVERRIDE;
35  virtual Region VisibleContentOpaqueRegion() const OVERRIDE;
36  virtual void DidLoseOutputSurface() OVERRIDE;
37
38  unsigned texture_id() const { return texture_id_; }
39  void set_texture_id(unsigned id) { texture_id_ = id; }
40  void set_premultiplied_alpha(bool premultiplied_alpha) {
41    premultiplied_alpha_ = premultiplied_alpha;
42  }
43  void set_blend_background_color(bool blend) {
44    blend_background_color_ = blend;
45  }
46  void set_flipped(bool flipped) { flipped_ = flipped; }
47  void set_uv_top_left(gfx::PointF top_left) { uv_top_left_ = top_left; }
48  void set_uv_bottom_right(gfx::PointF bottom_right) {
49    uv_bottom_right_ = bottom_right;
50  }
51
52  // 1--2
53  // |  |
54  // 0--3
55  void set_vertex_opacity(const float vertex_opacity[4]) {
56    vertex_opacity_[0] = vertex_opacity[0];
57    vertex_opacity_[1] = vertex_opacity[1];
58    vertex_opacity_[2] = vertex_opacity[2];
59    vertex_opacity_[3] = vertex_opacity[3];
60  }
61
62  virtual bool CanClipSelf() const OVERRIDE;
63
64  void SetTextureMailbox(const TextureMailbox& mailbox);
65
66 private:
67  TextureLayerImpl(LayerTreeImpl* tree_impl, int id, bool uses_mailbox);
68
69  virtual const char* LayerTypeAsString() const OVERRIDE;
70  void FreeTextureMailbox();
71
72  unsigned texture_id_;
73  ResourceProvider::ResourceId external_texture_resource_;
74  bool premultiplied_alpha_;
75  bool blend_background_color_;
76  bool flipped_;
77  gfx::PointF uv_top_left_;
78  gfx::PointF uv_bottom_right_;
79  float vertex_opacity_[4];
80  // This is a resource that's a GL copy of a software texture mailbox.
81  scoped_ptr<ScopedResource> texture_copy_;
82
83  TextureMailbox texture_mailbox_;
84  bool uses_mailbox_;
85  bool own_mailbox_;
86  bool valid_texture_copy_;
87
88  DISALLOW_COPY_AND_ASSIGN(TextureLayerImpl);
89};
90
91}  // namespace cc
92
93#endif  // CC_LAYERS_TEXTURE_LAYER_IMPL_H_
94